TocILizumab in aorTitis in GCA (TILT)

This is a french multicenter observational study assessing safety and efficacy of biosimilar of Tocilizumab in Giant Cell Arteritis (GCA) with active aortitis, including 14 reference centers from the Groupe d'Etude Français des vascularites des gros vaisseaux (GEFA). Giant Cell Arteritis (GCA), formerly known as temporal arteritis, is the most common form of systemic vasculitis in patients aged ≥ 50 years. GCA is defined by granulomatous arteritis that affects large#sized and medium#sized blood vessels with a predisposition to affect the cranial arteries. Aortitis accounted for more than 50% of GCA patients with the new imaging techniques. Aortitis is typically diagnosed using imaging tests such as magnetic resonance imaging (MRI) or Computed Tomography (CT) scans. Aortitis is an inflammation of the aorta, leading to a range of symptoms such as fever, weight loss, fatigue, and chest pain. In severe cases, aortic aneurysms or aortic dissection can occur, which can be life-threatening. Multiple reports have demonstrated the presence of abnormal pro-inflammatory cytokine production in large-vessel vasculitis patients, particularly those with GCA, including interleukin-1 (IL-1), IL-6, IL-18, tumor necrosis factor-α (TNF-α), and interferon-γ, by T lymphocytes and macrophages. IL-6 has been implicated as a crucial cytokine in the pathogenesis of aortitis and targeting its signaling has shown promising results in treating the condition. IL-6 inhibitors such as tocilizumab have bee…

This description comes directly from the study's public registry record.

David SAADOUN, Professor  ·  +33142178042  ·  david.saadoun@aphp.fr

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